document.write( "Question 251878: I need help understanding the method for solving quadratic equations from India.
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document.write( " The equation is x^2-2x-13=0. I have tried x^2-2x=13
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document.write( " 4x^2-8x=52
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document.write( " 4x^2-8x+4=52+4
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document.write( " 4x^2-8x+4=56
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document.write( "then it asks to take the square root of both sides. Since I cant calculate the square root of 56 I have to believe that I have an error somewhere. Does the negative 2x change my equation?
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document.write( "Thanks for your help. \n" );
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Algebra.Com's Answer #183575 by nyc_function(2741)![]() ![]() You can put this solution on YOUR website! Are you trying to solve x^2 -2x - 13 = 0 for x?\r \n" ); document.write( "\n" ); document.write( "You will need to use the quadratic formula for easy factoring?\r \n" ); document.write( "\n" ); document.write( "Understand? \n" ); document.write( " |